Index

  1. \SetaPDF
      1. Core
      2. Core
        1. DataStructure
          1. Color
          2. Color
              1. Cmyk
              2. Gray
              3. Rgb
              4. Special

SetaPDF_Core_DataStructure_Color_Gray Gray Color

File: /SetaPDF v2/Core/DataStructure/Color/Gray.php

Class hierarchy

Implements

Summary

Static Methods

Methods

Properties

Properties

$_components

protected SetaPDF_Core_Type_Array SetaPDF_Core_DataStructure_Color::$_components

The array of color components


Static Methods

createByComponents()

public static SetaPDF_Core_DataStructure_Color::createByComponents (
int|float|string|array|SetaPDF_Core_Type_Array $components
): SetaPDF_Core_DataStructure_Color

Create an instance by a PDF array object, PHP array or a hexadecimal string of an RGB value.

Parameters
$components : int|float|string|array|SetaPDF_Core_Type_Array

The count of $components define the color space (1 - gray, 3 - RGB, 4 - CMYK). The color values must be between 0 and 1.
It is also possible to pass a hexadecimal string of an RGB value. The string need to be prefixed by a sharp (#).

Exceptions

Throws InvalidArgumentException

hexToRgb()

public static SetaPDF_Core_DataStructure_Color::hexToRgb (
string $hex
): array

Converts a hex encoded string into a component array of red, green and blue values.

Parameters
$hex : string
 

writePdfString()

public static SetaPDF_Core_DataStructure_Color_Gray::writePdfString (
SetaPDF_Core_WriteInterface $writer, array|float $components [, boolean $stroking = true ]
): void

Writes a color definition directly to a writer.

Parameters
$writer : SetaPDF_Core_WriteInterface
 
$components : array|float

An array of 1 component or the value for the gray color

$stroking : boolean

Stroking flag

Exceptions

Throws InvalidArgumentException

writePdfStringByComponents()

public static SetaPDF_Core_DataStructure_Color::writePdfStringByComponents (
SetaPDF_Core_WriteInterface $writer, array|int|float|string $components [, bool $stroking = true ]
): void

Writes a color definition directly to a writer.

Parameters
$writer : SetaPDF_Core_WriteInterface
 
$components : array|int|float|string
 
$stroking : bool
 
Exceptions

Throws InvalidArgumentException


Methods

__construct()

public SetaPDF_Core_DataStructure_Color_Gray::__construct (
float|SetaPDF_Core_Type_Array $components
)

The constructor.

Parameters
$components : float|SetaPDF_Core_Type_Array
 
Exceptions

Throws InvalidArgumentException

__clone()

public SetaPDF_Core_DataStructure_Color::__clone (
void
): void

Implementation of __clone().

adjustAllComponents()

public SetaPDF_Core_DataStructure_Color::adjustAllComponents (
int|float $by
): void

Adjust all color components by a specific value.

Parameters
$by : int|float
 

draw()

public SetaPDF_Core_DataStructure_Color_Gray::draw (
SetaPDF_Core_WriteInterface $writer [, boolean $stroking = true ]
): void

Draw the color on a writer.

Parameters
$writer : SetaPDF_Core_WriteInterface
 
$stroking : boolean
 
See

getValue()

public SetaPDF_Core_DataStructure_Color::getValue (
void
): SetaPDF_Core_Type_Array

Get the components of the color.

toPhp()

public SetaPDF_Core_DataStructure_Color::toPhp (
void
): array

Get the data as a PHP value.